4.1.6.1.1 CompositeCurve Profile Definition

Composite curve profile definitons define the closed two-dimensional curve used for the cross-section by a composite curve, consisting of multiple composite curve segments. Each composite curve segment has a parent curve, being either a polyline or a trimmed curve. Trimmed curves have basis curves of type line, circle or ellipse.

Figure 50 illustrates an instance diagram.

CompositeCurve Profile DefinitionIfcArbitraryProfileDefWithVoidsIfcProfileTypeEnumIfcLabelIfcCompositeCurveIfcCompositeCurveSegmentIfcTransitionCodeIfcBooleanIfcTrimmedCurveIfcPolylineIfcCartesianPointIfcCircleIfcAxis2Placement2DIfcPositiveLengthMeasureIfcEllipseIfcAxis2Placement2DIfcPositiveLengthMeasureIfcPositiveLengthMeasureIfcCartesianPointIfcParameterValueIfcCartesianPointIfcParameterValueIfcBooleanIfcTrimmingPreferenceIfcCompositeCurve

Figure 50 — CompositeCurve Profile Definition

mvdXML Specification
<?xml version="1.0" encoding="utf-8"?>
<ConceptTemplate xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" uuid="63832052-221d-4c41-95d4-a56ee5d69e88" name="CompositeCurve Profile Definition" applicableSchema="IFC4" applicableEntity="IfcArbitraryProfileDefWithVoids">
  <Rules>
    <AttributeRule AttributeName="ProfileType">
      <EntityRules>
        <EntityRule EntityName="IfcProfileTypeEnum" />
      </EntityRules>
    </AttributeRule>
    <AttributeRule AttributeName="ProfileName">
      <EntityRules>
        <EntityRule EntityName="IfcLabel" />
      </EntityRules>
    </AttributeRule>
    <AttributeRule AttributeName="OuterCurve">
      <EntityRules>
        <EntityRule EntityName="IfcCompositeCurve">
          <AttributeRules>
            <AttributeRule AttributeName="Segments">
              <EntityRules>
                <EntityRule EntityName="IfcCompositeCurveSegment">
                  <AttributeRules>
                    <AttributeRule AttributeName="Transition">
                      <EntityRules>
                        <EntityRule EntityName="IfcTransitionCode" />
                      </EntityRules>
                    </AttributeRule>
                    <AttributeRule AttributeName="SameSense">
                      <EntityRules>
                        <EntityRule EntityName="IfcBoolean" />
                      </EntityRules>
                    </AttributeRule>
                    <AttributeRule AttributeName="ParentCurve">
                      <EntityRules>
                        <EntityRule EntityName="IfcTrimmedCurve">
                          <AttributeRules>
                            <AttributeRule AttributeName="BasisCurve">
                              <EntityRules>
                                <EntityRule EntityName="IfcPolyline">
                                  <AttributeRules>
                                    <AttributeRule AttributeName="Points">
                                      <EntityRules>
                                        <EntityRule EntityName="IfcCartesianPoint" />
                                      </EntityRules>
                                    </AttributeRule>
                                  </AttributeRules>
                                </EntityRule>
                                <EntityRule EntityName="IfcCircle">
                                  <AttributeRules>
                                    <AttributeRule AttributeName="Position">
                                      <EntityRules>
                                        <EntityRule EntityName="IfcAxis2Placement2D" />
                                      </EntityRules>
                                    </AttributeRule>
                                    <AttributeRule AttributeName="Radius">
                                      <EntityRules>
                                        <EntityRule EntityName="IfcPositiveLengthMeasure" />
                                      </EntityRules>
                                    </AttributeRule>
                                  </AttributeRules>
                                </EntityRule>
                                <EntityRule EntityName="IfcEllipse">
                                  <AttributeRules>
                                    <AttributeRule AttributeName="Position">
                                      <EntityRules>
                                        <EntityRule EntityName="IfcAxis2Placement2D" />
                                      </EntityRules>
                                    </AttributeRule>
                                    <AttributeRule AttributeName="SemiAxis1">
                                      <EntityRules>
                                        <EntityRule EntityName="IfcPositiveLengthMeasure" />
                                      </EntityRules>
                                    </AttributeRule>
                                    <AttributeRule AttributeName="SemiAxis2">
                                      <EntityRules>
                                        <EntityRule EntityName="IfcPositiveLengthMeasure" />
                                      </EntityRules>
                                    </AttributeRule>
                                  </AttributeRules>
                                </EntityRule>
                              </EntityRules>
                            </AttributeRule>
                            <AttributeRule AttributeName="Trim1">
                              <EntityRules>
                                <EntityRule EntityName="IfcCartesianPoint" />
                                <EntityRule EntityName="IfcParameterValue" />
                              </EntityRules>
                            </AttributeRule>
                            <AttributeRule AttributeName="Trim2">
                              <EntityRules>
                                <EntityRule EntityName="IfcCartesianPoint" />
                                <EntityRule EntityName="IfcParameterValue" />
                              </EntityRules>
                            </AttributeRule>
                            <AttributeRule AttributeName="SenseAgreement">
                              <EntityRules>
                                <EntityRule EntityName="IfcBoolean" />
                              </EntityRules>
                            </AttributeRule>
                            <AttributeRule AttributeName="MasterRepresentation">
                              <EntityRules>
                                <EntityRule EntityName="IfcTrimmingPreference" />
                              </EntityRules>
                            </AttributeRule>
                          </AttributeRules>
                        </EntityRule>
                      </EntityRules>
                    </AttributeRule>
                  </AttributeRules>
                </EntityRule>
              </EntityRules>
            </AttributeRule>
          </AttributeRules>
        </EntityRule>
      </EntityRules>
    </AttributeRule>
    <AttributeRule AttributeName="InnerCurves">
      <EntityRules>
        <EntityRule EntityName="IfcCompositeCurve" />
      </EntityRules>
    </AttributeRule>
  </Rules>
</ConceptTemplate>

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